Absolute encoders - SSI
Shaft with clamping or synchro flange
Optical singleturn encoder 14 bit
GA240, GA241 - SSI
Features
– Encoder singleturn / SSI
– Optical sensing
– Resolution: 14 bit
– Clamping flange or synchro flange
– Permanent check of code continuity
– Extreme resistance to shock and vibration
– Encoder with electronic reset
GA240 with clamping flange
Technical data - electrical ratings
Technical data - mechanical design
Voltage supply
10...30 VDC
Housing
ø58 mm
Reverse polarity protection Yes
Protection DIN EN 60529 IP 54 without shaft seal
IP 65 with shaft seal
Consumption w/o load
Initializing time (typ.)
Interface
≤50 mA (24 VDC)
Operating speed
≤10000 rpm (mechanical)
≤6000 rpm (electric)
20 ms after power on
SSI
Rotor moment of inertia
Admitted shaft load
14.5 gcm²
Steps per turn
Absolute accuracy
Sensing method
Code
16384 / 14 bit
±0.025°
≤20 N axial
≤40 N radial
Optical
Materials
Housing: aluminium
Flange: aluminium
Gray or binary
CW/CCW coded by connection
Operating temperature
-25...+85 °C
Code sequence
Inputs
-40...+85 °C (optional)
SSI clock
Relative humidity
Resistance
95 % non-condensing
Control signals UP/DOWN and
zero
DIN EN 60068-2-6
Vibration 10 g, 16-2000 Hz
DIN EN 60068-2-27
Shock 200 g, 6 ms
Output circuit
SSI data linedriver RS485
Diagnostic outputs push-pull
Interference immunity
Emitted interference
Diagnostic functions
DIN EN 61000-6-2
DIN EN 61000-6-4
Weight approx.
E-connection
250 g
Connector or cable
Self-diagnosis
Code continuity check
GA240 - SSI
Shaft
Approval
UL approval / E63076
ø10 mm
Flange
Clamping flange
Starting torque
≤0.015 Nm IP 54
≤0.03 Nm IP 65
GA241 - SSI
Shaft
ø6 mm
Flange
Synchro flange
Starting torque
≤0.01 Nm IP 54
≤0.015 Nm IP 65
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